A Microbiologist Inoculates Staphylococcus Epidermidis and Escherichia Coli into a Culture

question 70

Multiple Choice

A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium.Following incubation, only the E.coli grows in the culture.What is the most likely explanation?

• A)The microbiologist used too much inoculum.
• B)The culture is contaminated.
• C)The incubation temperature was incorrect.
• D)The culture medium must be selective.
• E)The culture medium must be differential

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